Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Press the extra firm tofu between paper towels with a heavy object for 10 minutes to remove excess moisture, then cut into 1-inch cubes.
In a large mixing bowl, combine the tofu cubes and drained chickpeas with the olive oil, garlic powder, onion powder, sea salt, and black pepper, tossing until evenly coated.
Spread the tofu and chickpeas in a single layer on the prepared baking sheet and roast for 25 minutes, flipping halfway through, until they are golden and crispy.
While the tofu roasts, place the broccoli florets in a steamer basket over boiling water and steam for 5 to 7 minutes until they reach a vibrant green and tender-crisp texture.
Assemble the Buddha bowl by placing the cooked quinoa in the base of a wide bowl and topping it with the roasted tofu, crispy chickpeas, and steamed broccoli.
Generously dust the entire bowl with nutritional yeast and hemp seeds to add a savory, nutty depth and a significant protein boost.
Finish the dish with a fresh squeeze of lemon juice over the top to brighten the flavors before serving immediately.